What is the median of the following data set: 5, 8, 12, 15, 20?
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What is the product of 26 multiplied by 17?
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What are the characteristics of the parabola function 𝑦 = ax^2? How does the value of parameter 𝑎 affect the shape, vertex, and axis of symmetry of the parabola? How does it influence the direction and steepness of the curve? How does it relate to the y-intercept?